Sodium hydride → HCID 49758976, compound

Participants

Reaction Conditions

Reaction Steps

In a sealed tube equipped with a septa under nitrogen was added 42 (600 mg, 0.00396 mol) and 20 mL of dry THF and the solution cooled to 0° C. NaH (110 mg, 0.00435 mol) was added portionwise and after 15 min. of stirring at 0° C., TBSCl (656 mg, 0.00435 mol) was added. The septa was replaced by a Teflon screw cap and the sealed tube heated at 80° C. for 3 h. Cooled and neutralized with ammonium chloride solution and extracted with hexanes. The organic phase was dried and concentrated in vacuo to an oil that was subjected to a short plug filtration (10% EtOAC-90% hexanes) to give 871 mg (82%) of compound 43. 1H NMR (500 MHz, CDCl3) 8.2 (s, 1H), 7.8 (s, 1H), 7.25 (s, 1H), 6.4 (s, 1H), 0.9 (s, 9H), 0.6 (s, 6H).

Provenance & Evidence